线阵光学降水现象自动测量系统

高太长; 江志东; 刘西川; 苏小勇; 翟东力

doi:10.3788/OPE.20122010.2184

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线阵光学降水现象自动测量系统

现代应用光学 | 更新时间：2020-08-12

- 线阵光学降水现象自动测量系统
- Optical precipitation auto-measurement system based on linear image sensor
- 光学精密工程 2012年20卷第10期页码：2184-2191
- 作者机构：
  
  1. 解放军理工大学,江苏南京,210007
  2. 解放军68028部队,甘肃兰州,730058
  3. 南京英恩特环境技术有限公司,江苏南京,210007
- 作者简介：
- 基金信息：
  
  国家公益性行业科研专项资助项目(No.GYHY200806030)()
- DOI：10.3788/OPE.20122010.2184
  中图分类号： P414.9
- 收稿日期：2012-06-25，
  
  修回日期：2012-07-26，
  
  纸质出版日期：2012-10-10
- 稿件说明：
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高太长, 江志东, 刘西川, 苏小勇, 翟东力. 线阵光学降水现象自动测量系统[J]. 光学精密工程, 2012,20(10): 2184-2191

GAO Tai-chang, JIANG Zhi-dong, LIU Xi-chuan, SU Xiao-yong, ZHAI Dong-li. Optical precipitation auto-measurement system based on linear image sensor[J]. Editorial Office of Optics and Precision Engineering, 2012,20(10): 2184-2191
高太长, 江志东, 刘西川, 苏小勇, 翟东力. 线阵光学降水现象自动测量系统[J]. 光学精密工程, 2012,20(10): 2184-2191 DOI： 10.3788/OPE.20122010.2184.

GAO Tai-chang, JIANG Zhi-dong, LIU Xi-chuan, SU Xiao-yong, ZHAI Dong-li. Optical precipitation auto-measurement system based on linear image sensor[J]. Editorial Office of Optics and Precision Engineering, 2012,20(10): 2184-2191 DOI： 10.3788/OPE.20122010.2184.

摘要

采用平行光成像的方式

研制了基于线阵图像传感器的降水现象自动测量系统

用于揭示大气降水物理特征及本质。首先

根据降水粒子微物理特征和降水现象业务观测的需求

设计了光学系统及高速线阵图像数据采集处理平台。然后

针对降水观测系统连续运行条件下线阵实时采集数据量大、不便于传输及处理的特点

利用现场可编程门阵列(FPGA)芯片实现片内线阵数据实时二值化处理及编码传输。为消除平行光源性能漂移及传感器光强响应非均匀性等对成像阈值设置的影响

保证长期运行测量精度和一致性

设计了基于微处理器软核MicroBlaze的自适应阈值设置方案。在室内定标实验的基础上

与翻斗雨量计进行初步观测对比试验。实验室定标结果表明

系统最小分辨率优于0.1 mm

实际同步观测累加降水量误差在15%左右

两者变化趋势大致相同

有较好的线性相关性。提出的系统满足降水现象自动测量对稳定可靠、自动化、精细化的要求。

Abstract

An optical precipitation auto-measurement system based on a linear image sensor was designed to reveal the physical mechanism and essence of the precipitation. First

according to physical characteristics of precipitation particles and the demand for precipitation observation

an optical unit and a data acquisition and processing platform for the high speed linear image sensor were designed. As the mass acquisition data were inconvenient for transmission and processing under a continuous operation

the real-time binarization and encoding processing of the linear image were carried out by Field Programmable Gate Array (FPGA). To eliminate the influence of performance excursion of parallel light source and pixel photoelectric response nonuniformity on the setting thresholds and to ensure the measurement precision and coherence

an adaptive threshold setting scheme was proposed and realized based on a MicroBlaze soft-core processor in the FPGA. The comparison experiment with tipping bucket pluviometer based on calibration in a laboratory was carried out. Experimental result indicates that the resolution of precipitation auto-measurement system can achieve 0.1 mm

and the error of cumulative precipitation amount in synchronization observation is about 15%. Obtained results can satisfy the requirements of precipitation auto-measurement for stabilization and high precision.

关键词

Keywords

references

孙学金,王晓蕾,李浩,等.大气探测学[M]. 北京:气象出版社,2009. SUN X J,WANG X L,LI H,et al.. Atmospheric Sounding[M].Beijing: Meteorological Press,2009.(in Chinese)[2] 高太长,刘西川,刘磊,等. 基于光学方法测量降水的关键技术研究. 第十二届中国科协年会,2010. GAO T CH,LIU X CH,LIU L,et al.. Research on key techniques about precipitation measuring by optical methods. The 11th Annual Meeting of China Association for Science and Technology,2010. (in Chinese)[3] VUERICH E,MONESI C,MALASPINA F, et al.. The WMO field intercomparision of rainfall intensity(RI) gauges: measurements and preliminary results.TECO-2008 WMO Technical Conference.[4] 吕达仁, 吴北婴. 激光闪烁相关法测雨遥感方程[J]. 科学通报, 1984, 29(17):1056-1959. LU D R, WU B Y. Remote sensing equation for rain measurement by laser scintillation method[J]. Chinese Science Bulletin,1984, 29(17): 1056-1959. (in Chinese)[5] 王青梅, 杨艳玲, 谢邦力. 利用雨的光闪烁效应测量降水强度[J]. 量子电子学,1994,11(3):198-204. WANG Q M, YANG Y L, XIE B L. Measurement of rain rates by optical scintillation[J]. Chinese Journal of Quantum Electronics,1994,11(3):198-204. (in Chinese)[6] 岑家生,王青梅,罗晖,等. 降水粒子的成像探测技术及仪器初探[J]. 大气与环境光学学报,2011,06(6),415-422. CEN J SH,WANG Q M, LUO H, et al.. Preliminary study of raindrop measurement technology and instrument by imaging[J]. Journal of Atmospheric and Environmental Optics,2011,6(6):415-422. (in Chinese)[7] MIKLOS S, SUBIR K M, KAROLINE D,et al.. Shapes and oscillations of falling raindrops-A review[J]. Atmospheric Research, 2010,94(4):416-425.[8] BEARD K V,BRINGI V N,THURAI M. A new understanding of raindrop shape[J].Atmospheric Research,2010,97(4):396-415.[9] SCHONHUBER M U U, POIARES J P V, BABTISTA, et al.. Measurements of precipitation characteristics by a new distrometer. Proc. Conf. Atmospheric Physics and Dynamics in the Analysis and Prognosis of Precipitation Fields, Rome, Italy.1994.[10] BAUMGARDNER D,KOK G, DAWSON W, et al.. A new groundbased precipitation spectrometer: The meteorological particle sensor (MPS).The 11th Conference on Cloud Physics. 2002: American Meteorological Society.[11] 江志东.基于线阵CMOS的降水现象观测仪器设计及初步实现. 解放军理工大学硕士学位论文,2011. JIANG ZH D. Design and Primary Implementation of Instrument for Precipitation Based on Linear CMOS Image Sensor.Nanjing:University of Science and Technology of Chinese Peoples Liberation Army,2011. (in Chinese).[12] 徐树兴,王宝光,郑义忠. 薄膜宽度在线测量系统关键技术的研究[J]. 传感技术学报,2006,19(6):2478-2480. XU SH X,WANG B G, ZHENG Y ZH. Study on in-line surface defect detection system for steel strip based on linear CCD sensor[J]. Chinese Journal of Sensors and Actuators, 2006,19(6):2478-2480.(in Chinese)[13] 伍济钢, 宾鸿赞. 机器视觉的薄片零件尺寸检测系统[J]. 光学精密工程,2007,1(15):124-130. WU J G, BIN H Z. Dimensional inspecting system of thin sheet parts based on machine vision[J]. Opt. Precision Eng., 2007,1(15):124-130.(in Chinese)[14] 凌伟,王志乾,高峰端. 光电测量系统畸变的实时数字校正[J]. 光学精密工程,2007,2(15):277-282. LING W,WANG ZH Q,GAO F D. Real time digital correction for distortion in photoelectronical measuring system[J].Opt. Precision Eng.,2007,2(15):277-282. (in Chinese)[15] 江志东,高太长,孙海洋,等. 线阵CMOS图像采集及编码传输的实现[J]. 传感技术学报,2012,24(4):554-558. JIANG ZH D,GAO T CH, SUN H Y,et al.. Implementation of linear CMOS image data acquisition and data encode compression[J]. Chinese Journal of Sensors and Actuators,2012,24(4):554-558. (in Chinese)[16] 孙海洋.降水光学自动测量方法研究. 解放军理工大学硕士学位论文,2011. SUN H Y. Research on the Method of Automatic Optical Measurement of Precipitation.Nanjing:University of Science and Technology of Chinese Peoples Liberation Army. (in Chinese)[17] 苏小勇.基于线阵CCD的降水测量系统校准方法及应用技术研究. 解放军理工大学硕士学位论文,2012. SU X Y. Research on the Calibration and Application of Precipitation Measurement System Based on linear CCD.Nanjing:University of Science and Technology of Chinese Peoples Liberation Army,2012. (in Chinese)

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